Tank wagon



1927' G. w. sAwYER TANK WAGON Filed July 18, 1925 2 Sheets-Sheet 1 NVE OR W" A AITORNEYS 1927' G. w. SAWYER TANK WAGON Filed July 1 1 2 Sheets-Sheet 2 IVESQR a iz Patented Oct. 4, 1927.

UNITED STATES PATENT OFFICE.

GEORGE W. SAWYEB, F GERMANTOWN, PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO SINCLAIR REFINING COMPANY, OF CHICAGO, ILLINOIS A CORPORATION OF MAINE.

TANK WAGON.

Application filed J'uly 1s 1925. Serial uo.44,6s5.

This invention relates to-vehicles having tanks for the delivery of liquids, and has to do more particularly with a tank truck- In the case of private residences, the storage tank into WhlCh the fuel is discharged is ordinarily at the rear, and direct dischar e from the truck into the tank cannot be ma e.

unless the truck is driven upon the property over private drive-ways. Such drive-ways are not built to withstand heavy hauling and are often seriously damaged by the 2 weight of the truck. Any method of delive other than direct discharge, is slow and la rious, and adds greatly to the fuel cost. The object of the present invention is to rovide a tank truck or similar vehicle, capable of holding lar I fuel and so equippe that delivery of the contents may be made at considerable distances from the vehicle. To this end, the. truck is provided with a tank, usually di- Vided into a plurality of compartments, with valved outlets leading to a manifold or header. A pump which may be driven by the truck motor is connected to the header on its inlet side and discharges into a conas nection with a hose carried on a reel mount ed preferably at the rear end of the truck.

The hose-is provided with av valve at its endby whichthe flow may be controlled and in order to prevent damage to the equipment, in the event that the valve is closed while the pump is acting, there is a by-pass around the pump controlled by a relief valve.

With the truck so constructed, delivery may be made easilyat considerable distances from the truck and direct discharge is provided for. The contents of the truck tank may also be discharged into ,a receptacle close to the truck without difficulty, since one end of the hose'is always connected to the pump outlet and as great a length of hose as may be necessary may be secured by unwinding the reel. When the delivery is completed, the hose valve is closed, and the hose rewound on the reel. This makes the operae quantities of liquid tion simple and avoids handling 'loose lengths of hose which may drip and thus cause damage.- 1 I In the accom anying drawings there is illustrated'that embodiment of the invention which is now preferred, and in these drawlugs,

Fig. 1 is a view in elevation of a tank truck on which the reel is mounted,

Fig. 2 is a plan view of a part of the vehicle structure, showing the pipe connections beneath the tanks,

Fig.v 3 is a rear end view showing the connections to the hose on the reel,

Fig. 4 is a side view of the reel, showing certain ofthe piping connections beneath it.

Referring now to these drawings, the vehicle is indicated generally at 5, as a motor truck of any conventional type. On the body of the truck is mounted a tank 6 for the liquid,.which may be divided into a plurality of smaller compartments 7, each of which has an inlet-opening 8 at the top. The tank is of the ordinary construction, and as illustrated, is ofa size such that it may contain large quantities of liquid fuel.

Mounted at the rear of the truck, on a U-shaped extension 9, from the truck frame, are upright A frames 10, made of any convenient material, such as angle iron, on

means of collars 15. A pipe 16 is connected.

to the tubular axle at its central point by fittings 18 and 19, and this pipe is, in turn, connected through suitable fittings to the end of a hose 20, of any standard type, the hose beingwound around the reel, as indicated at 21. The end of the hose carries a valve 20" by which flow through the hose may be controlled.

Beyond the A frame. the axle 12 is connected by a suitable joint connection 22,. to a piping 23, in which is a pressure gauge 24, this piping leading beneath the frame .and then longitud nally, as indicatedat- 25, to the outlet of a pump 26, having a shaft 27 by which it may be downwardly to a; point.

The reel is held in place end of the vehicle, and connected to this header through individual valves 30, are outlet pipes 31, 32, and 33, which lead tothe separate compartments ofv the tank, here shown as three in number. 'At the end of the header, there is a fitting 34, provided with a draw-01f valve, so that the header and the tank compartments may be drain'ed. Also extending between the outlet pipe and the inlet pipe 28, is a b -.pass 35, provided with a pressure relie valve 36.

To hold the reel" in fixed position when the hose has been unreeled the desired amount, a spring operated latch 37 is While the latch may be carried the reel or a fixed .part of the frame, it is preferably secured to the frame and is received in openings 38 in member s39 whichare secured to the discs 13.

With a tank 'truck so equipped it will be seen that when delivery is tobe made the hose is wound off the reel and connected "from the compartment into the header, and

is then drawn through the pump and discharged into the hose. .By mounting a valve at the end-of the hose, thedelivery of the liquid-may be carefully regulated, and when the'desired quantity of fuel has been discharged, the valve ma be closed so that the hose will not drip w en it is being reeled up. Atthe same time, if by accident, the hose valve should be closed while the pumping is continued, as soon" as pressure is built 'up to the required extent, the relief valve 36 will open so .Ithat the liquid will be by passed. around the pump in a continuous Circuit. This prevents damage to'the hose throughf careless manipulation'of the equipment. Also, by providing the header, as described,-it" is possible-to makeuse ofa I tank divided into small compartments. This is advantageous not only because it may be desirable to carry different kinds of fuel in the difierent compartments, but also because, by using small compartments, the surging effect which would be present in a longtank not subdivided, is largely overcome.

The new equipmentlprovides a convenient and compact arrangement for the delivery of liquids at considerable distances from the vehicle, and the cost of providing the additional equipment on a truck is relatively small. A truck so equipped is not only much more eflicient on account of the greater rapidity. with which delivery may be made,

but it also avoids any possibility of damage to the property where the fuel is to be derovided. y either at one end on the pressure side'of thepump greatly simplifies the operation and cheap a ens "the cost of fuel distribution.

I claim:

tion a plurality of tanks mounted on the frame thereof, a manifold connected to said tanks and adapted toreceive fluid therefrom, a pump having the inlet thereof connected to said manifold, a delivery conduit connected to the discharge side of the pump, a single by-pass leading from said delive conduit to a point in' advance of the inlet of the pump and including a relief valve, and a'valve in said delivery conduit located beyond said by-pass, said by-pass forming with the pumping system a circuit through which fluid'from the pump may pass in a circulatory manner when the valve in the delivery conduit is closed.

, 2. A tank wagon comprisin in combination a tank mounted onjthe 'ame thereof, a pump, a hose reel mounted on the frame of the wagon, a hose adapted to be reeled 1. A tank wagon comprising in combina-. A

thereon, a connection between the hose and the pump outlet, and a by-pass connected and at theother end to the low pressure side thereof, said by-pass. being controlled a pump, a hose reel mounted on the frame I of the wagon, a hose adapted to be reeled thereon having adjacent its end a manually controlled valve, a connection between the hose and the'pump outlet, cooperating means carried by the frame and reel for latching the-reel in fixed position, and-a by-pass con nected at one; end on the pressureside of the pump and at the other end to the low side thereof, said by-pass being controlled by a relief valve, whereby the liquid being pumped is permitted to circulate through the by-pass should the passage through .the

hose be obstructed.

Intestimony whereof I aflix my signature.

GEORGE W. SAWYER. 

